1 | /**
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2 | * @file
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3 | *
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4 | * IPv6 addresses.
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5 | */
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6 |
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7 | /*
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8 | * Copyright (c) 2010 Inico Technologies Ltd.
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9 | * All rights reserved.
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10 | *
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11 | * Redistribution and use in source and binary forms, with or without modification,
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12 | * are permitted provided that the following conditions are met:
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13 | *
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14 | * 1. Redistributions of source code must retain the above copyright notice,
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15 | * this list of conditions and the following disclaimer.
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16 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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17 | * this list of conditions and the following disclaimer in the documentation
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18 | * and/or other materials provided with the distribution.
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19 | * 3. The name of the author may not be used to endorse or promote products
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20 | * derived from this software without specific prior written permission.
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21 | *
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22 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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23 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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24 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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25 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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26 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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27 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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30 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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31 | * OF SUCH DAMAGE.
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32 | *
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33 | * This file is part of the lwIP TCP/IP stack.
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34 | *
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35 | * Author: Ivan Delamer <delamer@inicotech.com>
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36 | *
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37 | * Structs and macros for handling IPv6 addresses.
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38 | *
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39 | * Please coordinate changes and requests with Ivan Delamer
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40 | * <delamer@inicotech.com>
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41 | */
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42 | #ifndef LWIP_HDR_IP6_ADDR_H
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43 | #define LWIP_HDR_IP6_ADDR_H
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44 |
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45 | #include "lwip/opt.h"
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46 | #include "def.h"
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47 |
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48 | #if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
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49 |
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50 | #include "lwip/ip6_zone.h"
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51 |
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52 | #ifdef __cplusplus
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53 | extern "C" {
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54 | #endif
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55 |
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56 |
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57 | /** This is the aligned version of ip6_addr_t,
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58 | used as local variable, on the stack, etc. */
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59 | struct ip6_addr {
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60 | u32_t addr[4];
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61 | #if LWIP_IPV6_SCOPES
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62 | u8_t zone;
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63 | #endif /* LWIP_IPV6_SCOPES */
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64 | };
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65 |
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66 | /** IPv6 address */
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67 | typedef struct ip6_addr ip6_addr_t;
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68 |
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69 | /** Set an IPv6 partial address given by byte-parts */
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70 | #define IP6_ADDR_PART(ip6addr, index, a,b,c,d) \
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71 | (ip6addr)->addr[index] = PP_HTONL(LWIP_MAKEU32(a,b,c,d))
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72 |
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73 | /** Set a full IPv6 address by passing the 4 u32_t indices in network byte order
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74 | (use PP_HTONL() for constants) */
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75 | #define IP6_ADDR(ip6addr, idx0, idx1, idx2, idx3) do { \
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76 | (ip6addr)->addr[0] = idx0; \
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77 | (ip6addr)->addr[1] = idx1; \
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78 | (ip6addr)->addr[2] = idx2; \
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79 | (ip6addr)->addr[3] = idx3; \
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80 | ip6_addr_clear_zone(ip6addr); } while(0)
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81 |
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82 | /** Access address in 16-bit block */
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83 | #define IP6_ADDR_BLOCK1(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[0]) >> 16) & 0xffff))
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84 | /** Access address in 16-bit block */
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85 | #define IP6_ADDR_BLOCK2(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[0])) & 0xffff))
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86 | /** Access address in 16-bit block */
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87 | #define IP6_ADDR_BLOCK3(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[1]) >> 16) & 0xffff))
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88 | /** Access address in 16-bit block */
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89 | #define IP6_ADDR_BLOCK4(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[1])) & 0xffff))
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90 | /** Access address in 16-bit block */
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91 | #define IP6_ADDR_BLOCK5(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[2]) >> 16) & 0xffff))
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92 | /** Access address in 16-bit block */
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93 | #define IP6_ADDR_BLOCK6(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[2])) & 0xffff))
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94 | /** Access address in 16-bit block */
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95 | #define IP6_ADDR_BLOCK7(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[3]) >> 16) & 0xffff))
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96 | /** Access address in 16-bit block */
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97 | #define IP6_ADDR_BLOCK8(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[3])) & 0xffff))
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98 |
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99 | /** Copy IPv6 address - faster than ip6_addr_set: no NULL check */
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100 | #define ip6_addr_copy(dest, src) do{(dest).addr[0] = (src).addr[0]; \
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101 | (dest).addr[1] = (src).addr[1]; \
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102 | (dest).addr[2] = (src).addr[2]; \
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103 | (dest).addr[3] = (src).addr[3]; \
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104 | ip6_addr_copy_zone((dest), (src)); }while(0)
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105 | /** Safely copy one IPv6 address to another (src may be NULL) */
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106 | #define ip6_addr_set(dest, src) do{(dest)->addr[0] = (src) == NULL ? 0 : (src)->addr[0]; \
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107 | (dest)->addr[1] = (src) == NULL ? 0 : (src)->addr[1]; \
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108 | (dest)->addr[2] = (src) == NULL ? 0 : (src)->addr[2]; \
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109 | (dest)->addr[3] = (src) == NULL ? 0 : (src)->addr[3]; \
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110 | ip6_addr_set_zone((dest), (src) == NULL ? IP6_NO_ZONE : ip6_addr_zone(src)); }while(0)
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111 |
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112 | /** Copy packed IPv6 address to unpacked IPv6 address; zone is not set */
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113 | #define ip6_addr_copy_from_packed(dest, src) do{(dest).addr[0] = (src).addr[0]; \
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114 | (dest).addr[1] = (src).addr[1]; \
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115 | (dest).addr[2] = (src).addr[2]; \
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116 | (dest).addr[3] = (src).addr[3]; \
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117 | ip6_addr_clear_zone(&dest); }while(0)
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118 |
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119 | /** Copy unpacked IPv6 address to packed IPv6 address; zone is lost */
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120 | #define ip6_addr_copy_to_packed(dest, src) do{(dest).addr[0] = (src).addr[0]; \
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121 | (dest).addr[1] = (src).addr[1]; \
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122 | (dest).addr[2] = (src).addr[2]; \
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123 | (dest).addr[3] = (src).addr[3]; }while(0)
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124 |
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125 | /** Set complete address to zero */
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126 | #define ip6_addr_set_zero(ip6addr) do{(ip6addr)->addr[0] = 0; \
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127 | (ip6addr)->addr[1] = 0; \
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128 | (ip6addr)->addr[2] = 0; \
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129 | (ip6addr)->addr[3] = 0; \
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130 | ip6_addr_clear_zone(ip6addr);}while(0)
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131 |
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132 | /** Set address to ipv6 'any' (no need for lwip_htonl()) */
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133 | #define ip6_addr_set_any(ip6addr) ip6_addr_set_zero(ip6addr)
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134 | /** Set address to ipv6 loopback address */
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135 | #define ip6_addr_set_loopback(ip6addr) do{(ip6addr)->addr[0] = 0; \
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136 | (ip6addr)->addr[1] = 0; \
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137 | (ip6addr)->addr[2] = 0; \
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138 | (ip6addr)->addr[3] = PP_HTONL(0x00000001UL); \
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139 | ip6_addr_clear_zone(ip6addr);}while(0)
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140 | /** Safely copy one IPv6 address to another and change byte order
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141 | * from host- to network-order. */
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142 | #define ip6_addr_set_hton(dest, src) do{(dest)->addr[0] = (src) == NULL ? 0 : lwip_htonl((src)->addr[0]); \
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143 | (dest)->addr[1] = (src) == NULL ? 0 : lwip_htonl((src)->addr[1]); \
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144 | (dest)->addr[2] = (src) == NULL ? 0 : lwip_htonl((src)->addr[2]); \
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145 | (dest)->addr[3] = (src) == NULL ? 0 : lwip_htonl((src)->addr[3]); \
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146 | ip6_addr_set_zone((dest), (src) == NULL ? IP6_NO_ZONE : ip6_addr_zone(src));}while(0)
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147 |
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148 |
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149 | /** Compare IPv6 networks, ignoring zone information. To be used sparingly! */
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150 | #define ip6_addr_netcmp_zoneless(addr1, addr2) (((addr1)->addr[0] == (addr2)->addr[0]) && \
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151 | ((addr1)->addr[1] == (addr2)->addr[1]))
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152 |
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153 | /**
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154 | * Determine if two IPv6 address are on the same network.
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155 | *
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156 | * @param addr1 IPv6 address 1
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157 | * @param addr2 IPv6 address 2
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158 | * @return 1 if the network identifiers of both address match, 0 if not
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159 | */
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160 | #define ip6_addr_netcmp(addr1, addr2) (ip6_addr_netcmp_zoneless((addr1), (addr2)) && \
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161 | ip6_addr_cmp_zone((addr1), (addr2)))
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162 |
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163 | /* Exact-host comparison *after* ip6_addr_netcmp() succeeded, for efficiency. */
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164 | #define ip6_addr_nethostcmp(addr1, addr2) (((addr1)->addr[2] == (addr2)->addr[2]) && \
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165 | ((addr1)->addr[3] == (addr2)->addr[3]))
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166 |
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167 | /** Compare IPv6 addresses, ignoring zone information. To be used sparingly! */
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168 | #define ip6_addr_cmp_zoneless(addr1, addr2) (((addr1)->addr[0] == (addr2)->addr[0]) && \
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169 | ((addr1)->addr[1] == (addr2)->addr[1]) && \
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170 | ((addr1)->addr[2] == (addr2)->addr[2]) && \
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171 | ((addr1)->addr[3] == (addr2)->addr[3]))
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172 | /**
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173 | * Determine if two IPv6 addresses are the same. In particular, the address
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174 | * part of both must be the same, and the zone must be compatible.
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175 | *
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176 | * @param addr1 IPv6 address 1
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177 | * @param addr2 IPv6 address 2
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178 | * @return 1 if the addresses are considered equal, 0 if not
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179 | */
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180 | #define ip6_addr_cmp(addr1, addr2) (ip6_addr_cmp_zoneless((addr1), (addr2)) && \
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181 | ip6_addr_cmp_zone((addr1), (addr2)))
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182 |
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183 | /** Compare IPv6 address to packed address and zone */
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184 | #define ip6_addr_cmp_packed(ip6addr, paddr, zone_idx) (((ip6addr)->addr[0] == (paddr)->addr[0]) && \
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185 | ((ip6addr)->addr[1] == (paddr)->addr[1]) && \
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186 | ((ip6addr)->addr[2] == (paddr)->addr[2]) && \
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187 | ((ip6addr)->addr[3] == (paddr)->addr[3]) && \
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188 | ip6_addr_equals_zone((ip6addr), (zone_idx)))
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189 |
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190 | #define ip6_get_subnet_id(ip6addr) (lwip_htonl((ip6addr)->addr[2]) & 0x0000ffffUL)
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191 |
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192 | #define ip6_addr_isany_val(ip6addr) (((ip6addr).addr[0] == 0) && \
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193 | ((ip6addr).addr[1] == 0) && \
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194 | ((ip6addr).addr[2] == 0) && \
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195 | ((ip6addr).addr[3] == 0))
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196 | #define ip6_addr_isany(ip6addr) (((ip6addr) == NULL) || ip6_addr_isany_val(*(ip6addr)))
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197 |
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198 | #define ip6_addr_isloopback(ip6addr) (((ip6addr)->addr[0] == 0UL) && \
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199 | ((ip6addr)->addr[1] == 0UL) && \
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200 | ((ip6addr)->addr[2] == 0UL) && \
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201 | ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))
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202 |
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203 | #define ip6_addr_isglobal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xe0000000UL)) == PP_HTONL(0x20000000UL))
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204 |
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205 | #define ip6_addr_islinklocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfe800000UL))
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206 |
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207 | #define ip6_addr_issitelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfec00000UL))
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208 |
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209 | #define ip6_addr_isuniquelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xfe000000UL)) == PP_HTONL(0xfc000000UL))
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210 |
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211 | #define ip6_addr_isipv4mappedipv6(ip6addr) (((ip6addr)->addr[0] == 0) && ((ip6addr)->addr[1] == 0) && (((ip6addr)->addr[2]) == PP_HTONL(0x0000FFFFUL)))
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212 |
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213 | #define ip6_addr_ismulticast(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL))
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214 | #define ip6_addr_multicast_transient_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00100000UL))
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215 | #define ip6_addr_multicast_prefix_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00200000UL))
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216 | #define ip6_addr_multicast_rendezvous_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00400000UL))
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217 | #define ip6_addr_multicast_scope(ip6addr) ((lwip_htonl((ip6addr)->addr[0]) >> 16) & 0xf)
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218 | #define IP6_MULTICAST_SCOPE_RESERVED 0x0
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219 | #define IP6_MULTICAST_SCOPE_RESERVED0 0x0
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220 | #define IP6_MULTICAST_SCOPE_INTERFACE_LOCAL 0x1
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221 | #define IP6_MULTICAST_SCOPE_LINK_LOCAL 0x2
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222 | #define IP6_MULTICAST_SCOPE_RESERVED3 0x3
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223 | #define IP6_MULTICAST_SCOPE_ADMIN_LOCAL 0x4
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224 | #define IP6_MULTICAST_SCOPE_SITE_LOCAL 0x5
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225 | #define IP6_MULTICAST_SCOPE_ORGANIZATION_LOCAL 0x8
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226 | #define IP6_MULTICAST_SCOPE_GLOBAL 0xe
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227 | #define IP6_MULTICAST_SCOPE_RESERVEDF 0xf
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228 | #define ip6_addr_ismulticast_iflocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff010000UL))
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229 | #define ip6_addr_ismulticast_linklocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff020000UL))
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230 | #define ip6_addr_ismulticast_adminlocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff040000UL))
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231 | #define ip6_addr_ismulticast_sitelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff050000UL))
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232 | #define ip6_addr_ismulticast_orglocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff080000UL))
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233 | #define ip6_addr_ismulticast_global(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff0e0000UL))
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234 |
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235 | /* Scoping note: while interface-local and link-local multicast addresses do
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236 | * have a scope (i.e., they are meaningful only in the context of a particular
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237 | * interface), the following functions are not assigning or comparing zone
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238 | * indices. The reason for this is backward compatibility. Any call site that
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239 | * produces a non-global multicast address must assign a multicast address as
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240 | * appropriate itself. */
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241 |
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242 | #define ip6_addr_isallnodes_iflocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff010000UL)) && \
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243 | ((ip6addr)->addr[1] == 0UL) && \
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244 | ((ip6addr)->addr[2] == 0UL) && \
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245 | ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))
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246 |
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247 | #define ip6_addr_isallnodes_linklocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
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248 | ((ip6addr)->addr[1] == 0UL) && \
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249 | ((ip6addr)->addr[2] == 0UL) && \
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250 | ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))
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251 | #define ip6_addr_set_allnodes_linklocal(ip6addr) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \
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252 | (ip6addr)->addr[1] = 0; \
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253 | (ip6addr)->addr[2] = 0; \
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254 | (ip6addr)->addr[3] = PP_HTONL(0x00000001UL); \
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255 | ip6_addr_clear_zone(ip6addr); }while(0)
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256 |
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257 | #define ip6_addr_isallrouters_linklocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
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258 | ((ip6addr)->addr[1] == 0UL) && \
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259 | ((ip6addr)->addr[2] == 0UL) && \
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260 | ((ip6addr)->addr[3] == PP_HTONL(0x00000002UL)))
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261 | #define ip6_addr_set_allrouters_linklocal(ip6addr) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \
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262 | (ip6addr)->addr[1] = 0; \
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263 | (ip6addr)->addr[2] = 0; \
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264 | (ip6addr)->addr[3] = PP_HTONL(0x00000002UL); \
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265 | ip6_addr_clear_zone(ip6addr); }while(0)
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266 |
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267 | #define ip6_addr_issolicitednode(ip6addr) ( ((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
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268 | ((ip6addr)->addr[2] == PP_HTONL(0x00000001UL)) && \
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269 | (((ip6addr)->addr[3] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL)) )
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270 |
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271 | #define ip6_addr_set_solicitednode(ip6addr, if_id) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \
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272 | (ip6addr)->addr[1] = 0; \
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273 | (ip6addr)->addr[2] = PP_HTONL(0x00000001UL); \
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274 | (ip6addr)->addr[3] = (PP_HTONL(0xff000000UL) | (if_id)); \
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275 | ip6_addr_clear_zone(ip6addr); }while(0)
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276 |
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277 | #define ip6_addr_cmp_solicitednode(ip6addr, sn_addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
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278 | ((ip6addr)->addr[1] == 0) && \
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279 | ((ip6addr)->addr[2] == PP_HTONL(0x00000001UL)) && \
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280 | ((ip6addr)->addr[3] == (PP_HTONL(0xff000000UL) | (sn_addr)->addr[3])))
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281 |
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282 | /* IPv6 address states. */
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283 | #define IP6_ADDR_INVALID 0x00
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284 | #define IP6_ADDR_TENTATIVE 0x08
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285 | #define IP6_ADDR_TENTATIVE_1 0x09 /* 1 probe sent */
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286 | #define IP6_ADDR_TENTATIVE_2 0x0a /* 2 probes sent */
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287 | #define IP6_ADDR_TENTATIVE_3 0x0b /* 3 probes sent */
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288 | #define IP6_ADDR_TENTATIVE_4 0x0c /* 4 probes sent */
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289 | #define IP6_ADDR_TENTATIVE_5 0x0d /* 5 probes sent */
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290 | #define IP6_ADDR_TENTATIVE_6 0x0e /* 6 probes sent */
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291 | #define IP6_ADDR_TENTATIVE_7 0x0f /* 7 probes sent */
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292 | #define IP6_ADDR_VALID 0x10 /* This bit marks an address as valid (preferred or deprecated) */
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293 | #define IP6_ADDR_PREFERRED 0x30
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294 | #define IP6_ADDR_DEPRECATED 0x10 /* Same as VALID (valid but not preferred) */
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295 | #define IP6_ADDR_DUPLICATED 0x40 /* Failed DAD test, not valid */
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296 |
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297 | #define IP6_ADDR_TENTATIVE_COUNT_MASK 0x07 /* 1-7 probes sent */
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298 |
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299 | #define ip6_addr_isinvalid(addr_state) (addr_state == IP6_ADDR_INVALID)
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300 | #define ip6_addr_istentative(addr_state) (addr_state & IP6_ADDR_TENTATIVE)
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301 | #define ip6_addr_isvalid(addr_state) (addr_state & IP6_ADDR_VALID) /* Include valid, preferred, and deprecated. */
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302 | #define ip6_addr_ispreferred(addr_state) (addr_state == IP6_ADDR_PREFERRED)
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303 | #define ip6_addr_isdeprecated(addr_state) (addr_state == IP6_ADDR_DEPRECATED)
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304 | #define ip6_addr_isduplicated(addr_state) (addr_state == IP6_ADDR_DUPLICATED)
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305 |
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306 | #if LWIP_IPV6_ADDRESS_LIFETIMES
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307 | #define IP6_ADDR_LIFE_STATIC (0)
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308 | #define IP6_ADDR_LIFE_INFINITE (0xffffffffUL)
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309 | #define ip6_addr_life_isstatic(addr_life) ((addr_life) == IP6_ADDR_LIFE_STATIC)
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310 | #define ip6_addr_life_isinfinite(addr_life) ((addr_life) == IP6_ADDR_LIFE_INFINITE)
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311 | #endif /* LWIP_IPV6_ADDRESS_LIFETIMES */
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312 |
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313 | #define ip6_addr_debug_print_parts(debug, a, b, c, d, e, f, g, h) \
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314 | LWIP_DEBUGF(debug, ("%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F, \
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315 | a, b, c, d, e, f, g, h))
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316 | #define ip6_addr_debug_print(debug, ipaddr) \
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317 | ip6_addr_debug_print_parts(debug, \
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318 | (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK1(ipaddr) : 0), \
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319 | (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK2(ipaddr) : 0), \
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320 | (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK3(ipaddr) : 0), \
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321 | (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK4(ipaddr) : 0), \
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322 | (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK5(ipaddr) : 0), \
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323 | (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK6(ipaddr) : 0), \
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324 | (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK7(ipaddr) : 0), \
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325 | (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK8(ipaddr) : 0))
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326 | #define ip6_addr_debug_print_val(debug, ipaddr) \
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327 | ip6_addr_debug_print_parts(debug, \
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328 | IP6_ADDR_BLOCK1(&(ipaddr)), \
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329 | IP6_ADDR_BLOCK2(&(ipaddr)), \
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330 | IP6_ADDR_BLOCK3(&(ipaddr)), \
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331 | IP6_ADDR_BLOCK4(&(ipaddr)), \
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332 | IP6_ADDR_BLOCK5(&(ipaddr)), \
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333 | IP6_ADDR_BLOCK6(&(ipaddr)), \
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334 | IP6_ADDR_BLOCK7(&(ipaddr)), \
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335 | IP6_ADDR_BLOCK8(&(ipaddr)))
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336 |
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337 | #define IP6ADDR_STRLEN_MAX 46
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338 |
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339 | int ip6addr_aton(const char *cp, ip6_addr_t *addr);
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340 | /** returns ptr to static buffer; not reentrant! */
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341 | char *ip6addr_ntoa(const ip6_addr_t *addr);
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342 | char *ip6addr_ntoa_r(const ip6_addr_t *addr, char *buf, int buflen);
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343 |
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344 |
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345 |
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346 | #ifdef __cplusplus
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347 | }
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348 | #endif
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349 |
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350 | #endif /* LWIP_IPV6 */
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351 |
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352 | #endif /* LWIP_HDR_IP6_ADDR_H */
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